<?php 
include('conexion.php');
$fact = $_POST['idFact'];
$marca = $_POST['marca'];
echo'Monto:<br></br><input name="mont" type="text" id="montoE" onKeyUp="valMonto('.$fact.')"/> Bs.&nbsp;&nbsp;&nbsp;<div id="error"></div><input name="tipoP" id="tipoP" type="hidden" value="2"/><input name="marca" id="marca" type="hidden" value="'.$marca.'"/>';